Cesar said that 19.2 × 9.5 equals 18.24. is cesar's answer reasonable? a. yes, cesar's answer is reasonable. b. no, cesar's answer should be closer to 1.8. c. no, cesar's answer should be closer to 180. d. no, cesar's answer should be closer to 1,800.

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics